Adjustable wrench



' y Feb. 23, 19431 F. GORRELI.A 2,312,090

ADJUSTABLE WRENCH Filed Dec. 12, 1941 s sheets-sheet 1 O o JZ I f f? "/q 2'/ l A 72 25 y f* 7; g \\\\\l\\ L /a W /2 Mfg f V Inventor Feb- 23, 1943; F. GoRRELl. 2,312,090

ADJUSTABLE WRENCH Filed Dec. 12, 1941 -3 Sheets-Sheet 2 Inventor Feb. 23, 1943.

F. GORRELL ADJ US TABLE WRENCH Filed Deo. 12, 1941 3 Sheets-Shea*l 3 Attorney Patented Feb. 23, 1943 U-NlT'ED STATES F TENT OFFICE. l

ADJUSTABLE WRENCH Fred Gorrell, Odessa, Tex.

Application December 12, 1941, Serial No. 422,748

(Cl. til- 108) 1 Claim.

The principal object of the present invention is to provide an adjustable wrench which has as its primary object the provision of means Whereby the handle or shank of the wrench is used as the adjusting medium.

Another important object of the invention is to provide an adjustable wrench wherein the adjustable jaw thereof can be adjusted in a much more convenient and quick manner than is now permissible in conventional wrenches.

Other important objects and advantages of the invention will become apparent to the reader of the following description.

In the drawings:

Figure 1 represents a side elevational view of the improved wrench.

Figure 2 is an enlarged fragmentary side elevational view of the head portion of the Wrench with parts in section.

Figure 3 is a cross section on the line 3 3 of Figure 2.

Figure 4 is a cross section on the line 4 4 of Figure 2.

Figure 8 is a section on the line 8 8 of Figure 2.

Figure 9 is a section on the line 9-9 of Figure 2.

Referring to the drawings wherein like numerals designate like parts, it can be seen that the invention broadly comprises an outer jaw A, which is adjustable, a fixed inner jaw B and a rotary hand bar C for use in adjusting the jaw A with respect to the jaw B.

In carrying out the present invention, it can be seen that the outer jaw A has an elongated shank 5 formed with a transverse slot 6 at the inner end thereof. This end of the shank 5 is disposed between ears I on a collar 8, and a pin il is disposed through the ears 'I and through the slot 6. Thus the shank 5 is loosely connected to the collar 8. The back edge of the shank 5 is formed with a plurality of recesses I0 equidistantly spaced along the said shank.

The hand bar C has a knob II at its butt end, adjacent to which the bar is formed with a hanger hook opening I2.

A hand grip area is defined on the bar C by a plurality of longitudinally extending grooves I3 adjacent the collar 8. The presence of these grooves of course facilitate rotation of the bar C when adjustment of the outer jaw A is desired.

The remaining end of the bar C carries the inner jaw B and for a distance inwardly of the bar C from the jaw B and terminating at the grooves I3, the bar is formed to provide a screw I5. The collar 8 being internally threaded receives the threads of the screw I5. I

The inner fixed jaw B is formed with a longitudinally extending bore I6 for receiving a smooth pin extension I1 of the hand bar C. The terminal portion of this pin extension I1 is formed with a circumferential groove I8 which receives a pair of pins I9, I9 extending transversely through the block 2|] of the inner jaw B in parallel relation with respect to each other (see Figures 2 and 3). Thus the inner jaw B is swivelly connected to the hand bar C.

A guideway 2l is provided for the shank 5 of the outer jaw A, the outermost portion of this guideway 2I being formed with a hand engageable knob 22. The outer portion of the guideway 2| carries a pair of hollow plugs 23, 24 threadedly disposed into the guideway and each has therein a compression spring 25 exerting force against a detent element 26.

It will be observed that a strip spring 21 is employed and carried by the inner jaw B to exert force against the shank 5 of the outer jaw A to maintain the outer edge thereof iirmly against the outer portion of the guideway 2| and to the end that at alltimes one of the detents 26 will be engaged in one of the recesses IU. The distance between a pair of recesses I0 is less than the distance between the detents 26 so that only one detent is engaging in a recess I0 at any particular time.

It can be seen that the jaw B has upstanding flange portions 3l] formed with openings 3| to receive a pin 32 which is disposed through a removable jaw piece 33 in opposed relation to gripping corrugations 34 formed on the outer jaw A.

It can now be seen, that in order to adjust the outer jaw A with respect to the inner jaw B, the grooved portion I3 of the hand bar C can be gripped and the hand bar rotated. This Will result in the feeding of the collar 8 which by Way of the shank 5 will force the jaw A outwardly or inwardly with respect to the said jaw B and the detent 26 will engage in the recesses Ill in order to prevent any likelihood of self-adjustment as the wrench is used on Work.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and invention, what is posed through the collar and a swvelled connection between the threaded end of the rotary handle and the inner jaw, detent means between the guide and the shank on one side of the shank, said detent means consisting of a plurality of recesses formed in the shank and a spring projected element on the guide for projection into any one of the recesses, and a bowed spring fixed in said guide on the opposite side 10 of the shank and bearing against said side.

FRED GORRELL. 

